Home / 28,073.31-38,739.52-15,323.96

Finding the Fourth Proportional to 28,073.31, 38,739.52 and 15,323.96

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Solution

The fourth proportional to 28,073.31, 38,739.52 and 15,323.96 is: 21,146.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.31 : 38,739.52 = 15,323.96 : x
  2. Step 2: Convert to fraction form
    28,073.31/38,739.52 = 15,323.96/x
  3. Step 3: Cross multiply
    28,073.31x = 38,739.52 × 15,323.96
  4. Step 4: Simplify right side
    28,073.31x = 593,642,778.28
  5. Step 5: Solve for x
    x = 593,642,778.28/28,073.31
  6. Step 6: Final answer
    x = 21,146.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.